mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-09-18 22:59:29 +02:00
Rafael J. Wysocki
9d4f0ecb87
Some acpi_get_pci_dev() callers already have a struct ACPI device for which they want to get the struct pci_dev pointer of the associated PCI device, so they don't need to look for one. For this reason, add acpi_dev_get_pci_dev() that will get a PCI device for a given ACPI one (if possible) and turn acpi_get_pci_dev() into a static inline helper passing the acpi_fetch_acpi_dev() return value directly to acpi_dev_get_pci_dev(). No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/3430928.44csPzL39Z@rafael.j.wysocki
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* acpi_drivers.h ($Revision: 31 $)
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*
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* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
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* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
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*/
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#ifndef __ACPI_DRIVERS_H__
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#define __ACPI_DRIVERS_H__
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#define ACPI_MAX_STRING 80
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/*
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* _HID definitions
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* HIDs must conform to ACPI spec(6.1.4)
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* Linux specific HIDs do not apply to this and begin with LNX:
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*/
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#define ACPI_POWER_HID "LNXPOWER"
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#define ACPI_PROCESSOR_OBJECT_HID "LNXCPU"
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#define ACPI_SYSTEM_HID "LNXSYSTM"
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#define ACPI_THERMAL_HID "LNXTHERM"
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#define ACPI_BUTTON_HID_POWERF "LNXPWRBN"
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#define ACPI_BUTTON_HID_SLEEPF "LNXSLPBN"
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#define ACPI_VIDEO_HID "LNXVIDEO"
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#define ACPI_BAY_HID "LNXIOBAY"
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#define ACPI_DOCK_HID "LNXDOCK"
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#define ACPI_ECDT_HID "LNXEC"
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/* SMBUS HID definition as supported by Microsoft Windows */
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#define ACPI_SMBUS_MS_HID "SMB0001"
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/* Quirk for broken IBM BIOSes */
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#define ACPI_SMBUS_IBM_HID "SMBUSIBM"
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/*
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* For fixed hardware buttons, we fabricate acpi_devices with HID
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* ACPI_BUTTON_HID_POWERF or ACPI_BUTTON_HID_SLEEPF. Fixed hardware
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* signals only an event; it doesn't supply a notification value.
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* To allow drivers to treat notifications from fixed hardware the
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* same as those from real devices, we turn the events into this
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* notification value.
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*/
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#define ACPI_FIXED_HARDWARE_EVENT 0x100
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/* --------------------------------------------------------------------------
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PCI
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-------------------------------------------------------------------------- */
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/* ACPI PCI Interrupt Link */
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int acpi_irq_penalty_init(void);
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int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
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int *polarity, char **name, u32 *gsi);
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int acpi_pci_link_free_irq(acpi_handle handle);
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/* ACPI PCI Device Binding */
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struct pci_bus;
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#ifdef CONFIG_PCI
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struct pci_dev *acpi_dev_get_pci_dev(struct acpi_device *adev);
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#else
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static inline struct pci_dev *acpi_dev_get_pci_dev(struct acpi_device *adev)
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{
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return NULL;
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}
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#endif
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static inline struct pci_dev *acpi_get_pci_dev(acpi_handle handle)
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{
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return acpi_dev_get_pci_dev(acpi_fetch_acpi_dev(handle));
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}
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/* Arch-defined function to add a bus to the system */
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struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root);
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#ifdef CONFIG_X86
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void pci_acpi_crs_quirks(void);
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#else
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static inline void pci_acpi_crs_quirks(void) { }
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#endif
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/*--------------------------------------------------------------------------
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Dock Station
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-------------------------------------------------------------------------- */
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#ifdef CONFIG_ACPI_DOCK
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extern int is_dock_device(struct acpi_device *adev);
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#else
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static inline int is_dock_device(struct acpi_device *adev)
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{
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return 0;
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}
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#endif /* CONFIG_ACPI_DOCK */
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#endif /*__ACPI_DRIVERS_H__*/
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